Home / 91,015.40-136,424.49-46,581.23

Finding the Fourth Proportional to 91,015.40, 136,424.49 and 46,581.23

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Solution

The fourth proportional to 91,015.40, 136,424.49 and 46,581.23 is: 69,821.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,015.40 : 136,424.49 = 46,581.23 : x
  2. Step 2: Convert to fraction form
    91,015.40/136,424.49 = 46,581.23/x
  3. Step 3: Cross multiply
    91,015.40x = 136,424.49 × 46,581.23
  4. Step 4: Simplify right side
    91,015.40x = 6,354,820,970.57
  5. Step 5: Solve for x
    x = 6,354,820,970.57/91,015.40
  6. Step 6: Final answer
    x = 69,821.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.